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. No. 65,648 PATENTED JUNE 11. 1867. r

\ s. F. CRAIG.

WELL TUBE.

-- To ALL WHOM IT MAY oononnn;

Be-it knownthat I. S. F. CRAI G, of Eddyville, in the county of Wapello,and State of Iowa, have invented nits?) tattts "st-wt .15.

IMPROVED WELL-TUBE.

the ,fitiltllillt more it in this: jttttteh not an making imit at it:5mm.

P a M ce'rtnin new and useful improvements in Well-Tubes and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to make and use thesame, reference being had to the accompanying drawing, forming part ofthis specification.

The present inventionrelates to those well-tubes which at oneend areperforated and provided with a; sharp point or drill-head, and theinvention consists in the attachment to the'perforuted sides of thewell-tube of a wire screen or gauze, to prevent sand, dust, etc., fromentering the well-tube through its perforations, and thus from beingdrawn up through the tube to the pump, to which much injury hasheretofore resulted from the'presencc of sand with well-tubes having noprotecting screen or gonzo. The invention also consists in a, novelconstruction of the point or drill-head to the well-tube, whereby monyadvantages are secured, which will be obvious from the followingdescription and be also hereinafter mentioned. In the accompanying plateof drawings my improvements in well-tubes are illustrated I Figurelbeing a side view of the perforated and pointed end of the well-tube,with-the point in central vertical section; and

Figure 2 a transverse section taken in the place of the line a; i, fig.-1.

A, in the drawings, represents the perforated end of a. well-tube,around which n \vlre screen'or gauze, B, is secured by soldering it atall points except-where the perforations O are; this sereen'B preventingthesnud from passing through the perforations into the tube nndthence tothe pump, to which much injury would result were not the screenthus usedand applied. D, the point to the tube, to which; at its perforated end,it is secured with a space or chamber, E, around the end of the tube,from which, at the lower end, F, of the chamber, extends an air-passage,G, out through the thickness 'of the side of the point or drill-head.The drillhead is larger in diameter at H than that of the tube, so that,when driven through the ground, it will leave or make a. hole' largerthan the tube. This enlargement not only enables the tube to bewithdrawn with greater case, if so desired, but also serves to keep thesand or dust from the screen to the perforated end, as the tube isdriven. By means of the chamber around the perforated end of the tube,between it to the space or opening below the drill-heed as it moves orpasses up.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is- The combination and arrangement of theperforated end A of the well-tube, around which the wire screen or gauzeB is placed; point D, secured to the end of said tube, forming thechamber E and air-passage G, ashercin set forth, for the purposespecified,

S. F; CRAIG.

Witnesses GEORGE. MALE, G. W BARNETT.

